RectPosUpdater = function(go) {
    Updater.call(this,go);
};

RectPosUpdater.prototype = Object.create(Updater.prototype);

RectPosUpdater.prototype.run = function() {
    this.gameObject.rect.x = this.gameObject.x - this.gameObject.rectRX;
    this.gameObject.rect.y = this.gameObject.y - this.gameObject.rectRY;
};
